Protandim® is the only supplement clinically proven to reduce oxidative stress by an average 40%, slowing down the cell aging process to the level of a 20 year-old.* Protandim is not a conventional antioxidant supplement. Each Protandim caplet contains a unique combination of phytonutrients that signal the body's genes to produce its own antioxidant enzymes, which provides thousands of times more antioxidant power than any food or conventional antioxidant supplement.